Solid-state current limiter for power distribution system

Author

Ueda, Toshitsugu ; Morita, M. ; Arita, H. ; Kida, J. ; Kurosawa, Y. ; Yamagiwa, T.

Author_Institution

Electr. Power Res. & Dev. Center, Chubu Electric Power Co. Inc., Nagoya, Japan

Volume

8

Issue

4

fYear

1993

fDate

10/1/1993 12:00:00 AM

Firstpage

1796

Lastpage

1801

Abstract

To prevent voltage decrease of distribution systems, the principle and fundamental characteristics of a solid-state current limiter using GTO thyristors were investigated. Basic components of the apparatus were a fast solid-state switch and a current limiting impedance of low resistance in parallel with the switch. Experimental results of the test current limiter showed the fault current was limited successfully, regardless of DC component size. The time from detection of fault occurrence to interruption of the fault current by the solid-state switch was 40 μs. This time was very short in comparison with that before the fault current reached a large value. Thermal rise of the solid-state switch for conduction was solved by a self-cooling apparatus using a noncombustible cooling liquid. The results indicated that the solid-state current limiter was a valuable protecting device for high fault current distribution systems

Keywords

current limiting reactors; distribution networks; fault currents; power system protection; thyristor applications; 40 mus; GTO thyristors; current limiting impedance; fast solid-state switch; fault current; low resistance; noncombustible cooling liquid; power distribution system; protection device; self-cooling apparatus; solid-state current limiter; thermal rise; Current limiters; Fault currents; Fault detection; Impedance; Power distribution; Solid state circuits; Switches; Testing; Thyristors; Voltage;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.248287

Filename

248287